Heineich feiedbich hambbuch



(N0 Model.)

H. F. HAMBRUGH.

KNIFE .GL-B11111118 MACHINE.

110.271,841. Patented 1181181888.

IIIIIIIIIifllllllllllllll UNITED STATES PATENT. OinrIcE.` 7

HEINRICH FRIEDRICH HAMBRUOH, OF HAMBURG, GERMANY.4

e KNIFE-CLEANING MACHINE.

sPEcrFrcAcrIoN forming pare of Letters Patent No. 271,841, datedFebruary 6, 1883.

Application filed July 8, 1882.

.To all whom it may concern: A Be it known that I, HEINRICH FRIEDRICHHAMBRUCH, a subject of the Emperor of Germany, residing at Hamburg, inthe German Empire, have invented certain new and useful ImprovementsinKnife-Cleaning Machines,

`of which the following is a specification.

My invention relates to improvements in knife-cleaning machines in which`the blades of the knives pass Vbetween rotating rollers; and theobjects ot'my improvements are, first,

to apply a device forV automatically pushing` the blades to and fro;second, to provide a fastening mechanism for holding the knives whilecleaned; third, to facilitate the adjust.- ing of' theknives-in properposition for' passing the blades between the cleaning-rollers, and,fourth, to furnish a transportable feeder ofthe cleaning-powder. Iattain these objects by the mechanism illustrated in the accom*- panyiugdrawings, in which- Figure 1 is a sectional side elevation ot the entiremachine; Fig. 2,a frontelevation thereof; Fig. 3, a back view; and Fig.4, a top view, partly in section.

Similar letters refer tosimilar parts th roughout the several'views. l

The rotation of the cleaning-rollers a and a', of a soft or elasticmaterialsuch like indiarubher, leather, Sto-5s communicated to theshal'tc and the bevel-wheel c,iixed thereon, by means of the gearedwheels b, b', and b2. In consequence thereof the screw d rotates byintermediupi .ot the bevel-wheel d', and causes the slide A to traveliua direction corresponding to that ofthe hand-crank h.

The handles of the knives to be cleaned are attached to the slide A bymeans of the clamping device, actuated by means of the lscrew e in sucha manner that the blades of the knives are pushed between the rotatingrollers a and (No model.) Patented in France June 20, 1882, No. 149,684;in Belgium June 20,1862, No. 58,252, and in Austria-Hungary September 7,1882, No. 21,327, and No. 35,697.

a. The upper cross-piece, e', is pressed toward the plate e2 by thescrew e. The plate e2 may be adjusted according to the thickness of theknives handles lby, means ofthe screws e3, in

order to hold the knives in the position re.- quired for satisfactoryworking of ,thev machine. Thetable fastened to the slide A and travelingwith the same, serves to protect the mechanism located below, andY toreceive the cleaning-powder for feeding the rollers a and 4acontinuously. l

The upper roller, a, may be pressed by a convenientmechanism-eitheraweighted lever or sprin gs or rubber cushionsto thelower roller, a'. The screw may be replaced by a rack and pinion, or bya connecting-rod between the slide A and a crank or disk fixed to theshaitfc.

Also, endless bands may be substituted for the rollers a and a. Y

Having thus fully described my invention, what I desire to claim andsecure by Letters. Pa tent is l. In a kuifecleaning machine, thecombination ot' the rotating` rollers aand a with the slide A, thei'eedi|ig-tablef, and the clamping device composed ot' the adjustableplate e2, the

crosspiece e', and the screw @substantially as ,l

